Hi there.
How do you measure the output?
With a wattmeter of with a scope?
IF you have a scope (AND an attenuator!!) please check the shape of the output!.
If it is a solid sine-wave, that already looks promising.
If not, you have a problem¡
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On 14 Jun 2022, at 07:54, Colin Christie <colincolin30@...> wrote:
?
Hi all,
thanks for the suggestions made to solve my issue relating to not being able to peak my BPFilter.
I have watched the?youtube videos and read as much as i can on the issue. It seems the 40m usually does not have this issue.
I have tried each of the suggestions?and have reflowed just about every soldered joint.?
I have spent my? time looking for shorts between soldered points using an eye loop and strong light.
?I am very happy with the connectivity of both the T1 wiring and the L1,L2,L3 wiring.
I have conductivity between the centre of the BNC and Cap 29.
I can, when I hold my finger on the control board ( where the pins go to the motherboard) hear very, very faintly local broadcast?stations.
I have also lodged a "technical enquiry"?with Hans to get his advice.
Is there something I am missing here, I am not a techie?but self taught in electronics?, so any help will be taken on board.
I am dying to get this little beauty on the air.
73 Colin vk2jcc
On Fri, 10 Jun 2022 at 03:06, David R. Hassall WA5DJJ <
dhassall@...> wrote:
Dear Howard,
I had a similar problem when building my 30M QCX-Mini.?? My BNC connector mounting pins on the outside ring of the connector? was a little crooked in the solder outlined holes and when I soldered them?? I inadvertently had solder drift over
and short the center pin to the outside of the connector.??? The short occurred from one of the auxiliary holes in the board for making alternate connections for the antenna.connections.? I had the same indications when trying to do the
BPF alignment.? It was hard to see without some magnification.?? so look closely.
take care and have fun.
73 Dave WA5DJJ
SUPER GRABBER